Emerald Dragon // Dissonant Wave {4}{G}{G} // {2}{G}
Creature — Dragon // Instant — Adventure
Flying, trample
Counter target activated or triggered ability from a noncreature source. (Then exile this card. You may cast the creature later from exile.)
click a line to search just that ability, click more to combine them
Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Trickbind 80%
$12.31#6477
"Counter target activated or triggered ability. If a permanent's ability is countered this way, activated abilities of that permanent can't be activated this turn."